Can cover



FIG. 1 is a top front perspective view of the ornamental design of the instant invention;

FIG. 2 is a left side elevation;

FIG. 3 is a right side elevation;

FIG. 4 is a top plan view;

FIG. 5 is a front elevation;

FIG. 6 is a bottom plan view; and,

FIG. 7 is a rear elevation. 

CLAIM The ornamental design for a can cover, as shown and described. 